Home / 85,177,029.30-127,765,543.95-31,317,342.90

Finding the Fourth Proportional to 85,177,029.30, 127,765,543.95 and 31,317,342.90

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Solution

The fourth proportional to 85,177,029.30, 127,765,543.95 and 31,317,342.90 is: 46,976,014.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,177,029.30 : 127,765,543.95 = 31,317,342.90 : x
  2. Step 2: Convert to fraction form
    85,177,029.30/127,765,543.95 = 31,317,342.90/x
  3. Step 3: Cross multiply
    85,177,029.30x = 127,765,543.95 × 31,317,342.90
  4. Step 4: Simplify right side
    85,177,029.30x = 4,001,277,350,687,170.50
  5. Step 5: Solve for x
    x = 4,001,277,350,687,170.50/85,177,029.30
  6. Step 6: Final answer
    x = 46,976,014.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.